The Weekly Compete Pulse

Here are the most popular stories from the past week. Agencies can now create more sophisticated Twitter campaigns; the site released its highly anticipated advertising API on Wednesday. To compare, Facebook released its advertising API in 2009. Ads previously had to be loaded one at a time–when marketers really wanted to take advantage of the real-time interactions Twitter uniquely offers. Read more of how the ads API impacts marketers on MediaPost.

Here are the most popular stories from the past week.

Agencies can now create more sophisticated Twitter campaigns; the site released its highly anticipated advertising API on Wednesday. To compare, Facebook released its advertising API in 2009. Ads previously had to be loaded one at a time–when marketers really wanted to take advantage of the real-time interactions Twitter uniquely offers. Read more of how the ads API impacts marketers on MediaPost.

A new Pew research study found that Pinterest has nearly caught up with Twitter in number of users. 15% of US online adults use Pintest regularly, compared to 16% who use Twitter. The study offered up other fresh statistics on social networks, TechCruch has the full report,

Finally, January data is live at Compete! We’ve compiled the list of fastest growing sites in January. Tax returns are on every body’s mind, with tax sites claiming the top three spots. NHL.com ranked number eight, with hockey fans elated that the lock out is over.

What was your favorite story online this week? Let us know in the comment section.

About Carro Halpin:Carro is excited to join the Compete team as the Digital Marketing Co-op for Compete.com, with a focus on all things social media. A third-year student at Northeastern University, Carro is pursuing a major in Communication Studies and a minor in Political Science. She has a passion for digital media. Follow her on Twitter @carrohalpin or connect on Google+